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Anonymous asked in Science & MathematicsGeography · 1 decade ago

what was North Carolina like throughout geologic time?

what was North Carolina like throughout geologic time

1 Answer

  • 1 decade ago
    Favorite Answer

    The state is best described in terms of geological belts; that is, areas with similar rock types and geologic history.

    Three major classes of rocks common to North Carolina are igneous, metamorphic and sedimentary. North Carolina has a long and complex geologic history.

    North Carolina has important deposits of many minerals and annually leads the nation in the production of feldspar, lithium minerals, scrap mica, olivine and pyrophylitte.

    The state produces essential quantities of ultra pure quartz used for the fabrication of computer chips. The state ranks second in phosphate rock production and ranks in the top five state in clay and crushed granite production. North Carolina does not produce significant quantities of metallic minerals.

    The Carolina state belt consists of heated and deformed volcanic sedimentary rocks. It was the site of oceanic valcanic islands about 550-650 million years ago. This belt is known for its numerous abandoned gold mines and prospects.

    North Carolina led the nation in gold production before the California Gold Rush of 1849. In recent decades, only minor gold mining has taken place.

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